function y = brown(x)
%Brown badly scaled function
%n=2,m=3,x0=[1,1]
%fmin1=f4([10^6;2*10^(-6)])=0
%Author:Ji Lin
y1=x(1)-10^6;
y2=x(2)-2*10^(-6);
y3=x(1)*x(2)-2;
y=y1^2+y2^2+y3^2;
